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In the latest bust officers uncovered 250 gm packages of methamphetamine hidden in the bottom of each 24-piece boxed set that arrived by air cargo from Hong Kong.

It was estimated the intercepted shipment had a street value of $20m.

Customs investigators linked the shipment to a 23-year-old Hong Kong national who arrived in New Zealand three months ago on a visitor's visa.

He was arrested at a house on Auckland's North Shore last night. He now faces a maximum penalty of life imprisonment.

Customs Investigations manager Maurice O'Brien said this was yet another significant seizure that involved an ever-changing method of concealment.

"Customs places a lot of emphasis on understanding the international supply chain and works closely with international enforcement partners around the world to not only cause disruption through individual seizures, but also dismantle the syndicates who are involved."

He said these relationships worked well and were necessary to dismantle syndicates and providing interception capability off-shore to tackle the root of the supply chain.